Home / 28,133.80-38,821.70-16,194.76

Finding the Fourth Proportional to 28,133.80, 38,821.70 and 16,194.76

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Solution

The fourth proportional to 28,133.80, 38,821.70 and 16,194.76 is: 22,347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.80 : 38,821.70 = 16,194.76 : x
  2. Step 2: Convert to fraction form
    28,133.80/38,821.70 = 16,194.76/x
  3. Step 3: Cross multiply
    28,133.80x = 38,821.70 × 16,194.76
  4. Step 4: Simplify right side
    28,133.80x = 628,708,114.29
  5. Step 5: Solve for x
    x = 628,708,114.29/28,133.80
  6. Step 6: Final answer
    x = 22,347.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.